NEET BIOLOGY

Detailed explanation-1: -Hox genes are members of the homeotic transcription factor family that play a key role in controlling the body plan along the cranio-caudal axis (also referred to as anterior–posterior), and specify segment identity of tissues within the embryo.

Detailed explanation-2: -A family of genes called the Hox genes are involved in controlling the formation of the somites. However, it is not known whether they directly control the number of somites that form, or whether they control the length of the body of the embryo.

Detailed explanation-3: -During development, this axis is divided into a series of segments, and the Hox genes are well-known for determining what structure form in each segment-that is, they control where the head, shoulders, knees, and toes go; mutations in Hox genes famously results in body parts sprouting in the wrong place.

Detailed explanation-4: -Hox genes are an evolutionary highly conserved gene family. They determine the anterior-posterior body axis in bilateral organisms and influence the developmental fate of cells.

Detailed explanation-5: -HOX genes are a family of regulatory genes that encode transcription factors and are essential during embryonic development. These genes are highly conserved between species such that all metazoans possess a common genetic system for embryonic patterning.